Pump or impeller



June 14,1927. 1,632,357

. H. WHITE PUMP OR IMPELLER Filed May 24, 1926 A TTORNE Y.

or impeller construction,

Patented June 14, 1927.

UNITED STATES PATENT OFFICE.

xanax wurm, or xnNnoim, onto.

PUK? B INPELLEB.

This invention relates to pum s or impellers, such as may be employed,or example, in impelling iuids such as air or water, theparticularimpeller here shown being adapted for use in wells.

The general purpose of the invention is to provide an improved,self-contained pump capable of easy and inexpensive manufacture.`

Another particular object of the invention is to provide a combinedmotor and pump or l inlpeller construction in which the rotor of themotor comprises a revolving field which rotates about a fixed armatureand which carries the impellers of the pump.

rilhe foregoingand other objects are obtained by the constructionillustrated in the accompanying drawings and described below. it is tobe understood that the invention is not limited to the specific formthereof shown and described.

0f the accompanying drawings,

Figure l is a vertical diametral section through a pump illustrated in awell; and

Figure 2 is a section on line 2-2 of Figure 1.

Referring to the drawings, a, cylindrical casing having a 'l1' and aconical bottom 12 suction pipe 'tom 12 and a discharge pipe 14 to thetop 11.

Gasing/bottom 12 is formed with a spider 15 supporting a bearing 16 inwhich is secured, as by a key 17, a hollow shaft i8 which is supportedat its upper end by a bearinfr 19 1n a motor casing 2O which isjournaled at its upper end in a bearing 21 secured on a spider 22 in thecasing top 11 and at its lower end in bearing 17 'at 23, the bearing 23beinl packed as at 24 against leakage of Huid mto casing 2() whichiscon- 'sti-acted to be water-tight throughout. `Casing 20 may also havebearings on shaft 18 at 25 on a flange 18a on said shaft and at 26 sothat motor casing 20 will be freely rotatable about shaft 18.

Secured on the outer side of casing 20are impellers 27, 27, and arrangedon the inner side of casing 10 are vanes 28, 28 with which impellers 27are arranged to cooperate to pump liquid throughcasing 10 from the inlet13 to the outlet 14 about the Ingrid-tight casing 20.

Fixed on shaft 18 within casing 20 is the armature 29 and secured on theinner wall of casing 20 and encircling said arma- 10 represents conicaltopA secured thereto, a 13 being connected to the botture is the field30 of any suitable type of motor, which may be su plied with electricityby means of a lea cable 31 extending into casing 20 through bearing 16an hollow shaft 18, cable 31 being led up out oi the well from the pumpto a source of supply of electricity.

The operation of the pump will be unl derstood from the foregoingdescription. Briefly, it may be described as follows:

After the pump is in situ, the electricity is supplied to the motor,causing the field 3() to revolve about armature 29 and thus rotatingcasing 20 which completely encloses the motor. Vllhe impellers 27 pumpthe liquid upwardly through casing 10 about casing 20 into the dischargepipe i4.

Modifications of the invention may be resorted to without departing fromthe spirit thereof or the scope of the appended claims. By suitablemodification of the construction shown it may be employed for suctionfans and other types of liquid or gas impellers, the essential featurebeing that the fluid impellers are secured directly onto the revolyingmember of the motor whereby use of shafting, belting, gearing, etc.,between the rotor and the impeller is obviated.

What is claimed is:

1. A self-'contained pump comprising a pump casing, a fluid-tight motorcasingl rotatable within the pump casing, an impeller carried by themotor casing, a vane on the pump casing with which the impellercooperates, a fixed hollow shaft extending through the motor casing, amotor armature secured on said shaft, a motor field secured within thecasing about the armature, nd means leading into the pump casing andthrough the hollow shaft into the motor casing-for supplying electricityto the' motor.

2. A self-contained pump comprising a pump casing, a fluid-tight motorcasing rotatable within the pump casing, an impeller carried by themotor casing, a fixed hollow shaft extending through the motor casing, amotor armature secured on said shaft, a motor field secured within thecasing about the armature, and means leading into the pump casing andthrough the hollow shaft into the motor casing for supplying electricityto the motor. e 3. A self-contained pump comprising a pump casing, afluid-tight motor casing rotatable within the pump casing, an impellercarried by the motor casing, a

fixed motor 'l armature within the motor casing, a motor tatabletherein, an electric motor housed eld secured to the casing about thearmawithin' the second casing` for rotating the ture, and means leadinginto the pump cassame, and impellers upon the second casing l ing andinto the motor casing for supplying for pumpinl liquids through thefirst casl electricity to the motor. lng around t e second casing.

4. A pump comprisin in combination, an outer casing, a second uid tightcasing ro- HARRY WHITE.

